CN208568127U - The chassis dynamometer of permanent magnet synchronous motor driving - Google Patents

The chassis dynamometer of permanent magnet synchronous motor driving Download PDF

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Publication number
CN208568127U
CN208568127U CN201821073901.3U CN201821073901U CN208568127U CN 208568127 U CN208568127 U CN 208568127U CN 201821073901 U CN201821073901 U CN 201821073901U CN 208568127 U CN208568127 U CN 208568127U
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CN
China
Prior art keywords
stator
synchronous motor
shaft
permanent magnet
magnet synchronous
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CN201821073901.3U
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Chinese (zh)
Inventor
黄诚
徐伟
刘汉光
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Hubei Huanyee Electromagnetic Equipment Engineering Technology Co Ltd
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Hubei Huanyee Electromagnetic Equipment Engineering Technology Co Ltd
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Abstract

The utility model discloses a kind of chassis dynamometer of permanent magnet synchronous motor driving, includes pedestal, main shaft, encoder, torque dynamometer and turns Grains, the main shaft by bearing fixed installation on the base;Suo Shu Zhuan Grains is fixed on the main shaft, and the main shaft provides resistance by permanent magnet synchronous motor, and the permanent magnet synchronous motor includes shaft, shell, stator module and rotor assembly;The stator module is fixedly mounted on the housing, provides the resistance magnetic field of rotation for the rotor assembly;The rotor assembly with magnetic property is fixedly installed in the shaft, corresponding with the stator module;The torque dynamometer is placed between the main shaft and shaft, for measuring the driving torque between axis;The encoder is used to measure the revolving speed and corner of the shaft.The utility model provides that a kind of structure is simple, and difficulty of processing is low, and control precision is high, and detection data is reliable, perfect heat-dissipating, and adapts to the chassis dynamometer of extreme environment in environment storehouse.

Description

The chassis dynamometer of permanent magnet synchronous motor driving
Technical field
The utility model relates to the chassis that automotive inspection equipment technical field more particularly to a kind of permanent magnet synchronous motor drive Dynamometer machine.
Background technique
Chassis dynamometer is a kind of room for testing the performances such as vehicle dynamic quality, multi-state discharge index, fuel oil index Interior bench test equipment, road simulation dynamometer calculate road analogy equation, and use loading device by roller simulated roadway It is simulated, realizes the accurate simulation to each operating condition of automobile, it can be used for the load debugging of automobile, diagnose automobile in loading condition The failure of lower appearance;Its group together with five gas analyzer, transmission-type smoke meter, engine tachometer and computer automatic control system At an Integrated Measurement System to measure the motor vehicle exhaust emission under different operating conditions, chassis dynamometer is easy to use, reliable performance It is not influenced by external condition.Under the premise of not disintegrating automobile, each system of automobile, component can be quickly and accurately detected Service performance.Chassis dynamometer both can be used for automobile scientific experimentation, can be used for maintenance conditions.
There are two types of basic structures for current motor-type chassis dynamometer: one is by dynamometer, rotary drum, variable combination flywheel The big element coaxial connection composition of group three, wherein dynamometer provides resistance to driving wheel of vehicle by rotary drum, absorbs wheel operating and produces Raw mechanical work, while measuring rotary drum revolving speed and acting on torque on rotary drum.It detects in work, including motor and rotary drum inertia Flywheel group inertia inside provides inertia force when variable-speed operation, and the vehicle of different inertia is adapted to different flywheels. Another structure is removal flywheel group, and the inertia of mechanical flywheel group is replaced using the equivalent electric simulation inertia that dynamometer machine generates Power, instead of the mechanical inertia of flywheel group.And as detection deepens continuously, the test of vehicle is increasingly refined, data precision It is required that it is also higher, it is all to need to carry out in environment storehouse, environment storehouse can be real in the test of most of chassis dynamometers therefore Existing cold-starting automobile test, the discharge examination of automobile thermocycling, frost mist simulation test, harmful gas in vehicle simulation test, vehicle It the reliable experimental situation such as tests, provides the examination and test of products and the exploitation service of new product, the construction rule in environment storehouse for Railway Car Plant Lattice generally have higher requirements in terms of temperature control: 1, temperature examination range: -45 DEG C -65 DEG C, controlling precision ± 1 DEG C;2, cooling speed Rate: zero load is down to -45 DEG C from+25 DEG C with temperature in inside cabin in 360 minutes;3, heating rate: unloaded 60 minutes with temperature in inside cabin 65 DEG C are risen to from+25 DEG C;4, cold start-up test is carried out under low temperature, not temperature control after starting;5, hot environment, 35 DEG C of temperature-are simulated 65 DEG C, temperature 60%RH-60%RH.And in dynamometer machine detection process, in order to preferably protect equipment, it is desirable to be not required to When dynamometer machine being wanted to work, dynamometer machine can be isolated with environment storehouse, be finished to the adjustment of environment storehouse temperature, then dynamometer machine is moved to ring In the storehouse of border, vehicle is tested.
Utility model content
The purpose of the utility model is to provide a kind of structure is simple, difficulty of processing is low, and control precision is high, and detection data can It leans on, perfect heat-dissipating, and adapts to the chassis dynamometer of extreme environment in environment storehouse.
In order to achieve the above purposes, the technical solution adopted by the utility model is:
A kind of chassis dynamometer of permanent magnet synchronous motor driving, include pedestal, main shaft, encoder, torque dynamometer and Turn Grains, the main shaft is fixedly mounted on the base by bearing;Suo Shu Zhuan Grains is fixed on the main shaft, the main shaft by Permanent magnet synchronous motor provides resistance, and the permanent magnet synchronous motor includes shaft, shell, stator module and rotor assembly;It is described Stator module is fixedly mounted on the housing, provides the resistance magnetic field of rotation for the rotor assembly;With magnetic property The rotor assembly is fixedly installed in the shaft, corresponding with the stator module;The torque dynamometer is placed in described Between main shaft and shaft, for measuring the driving torque between axis;The encoder is used to measure the revolving speed of the shaft and turns Angle.
Preferably, the shell includes cylindrical cavity, front pressuring plate and rear fender, and the front pressuring plate and rear fender are removable The cylindrical cavity both ends are connected to, the shaft is installed in the front pressuring plate and rear fender by bearing;Its advantages It is: divides housing 135 into three parts, reduce monoblock type difficulty of processing, and convenient for assembly, replacement is convenient, easy to repair.
Preferably, the cylindrical cavity is equipped with the first heat release hole;The beneficial effect is that: enhancing motor and outside air Circulation, convenient for distributing for motor heat.
Preferably, the front pressuring plate is equipped with the second heat release hole;The structure of the rear fender is identical as the front pressuring plate structure; The beneficial effect is that: the front pressuring plate and rear fender being arranged symmetrically use identical design, it is possible to reduce parts machining Type, reduce components production cost;The circulation for further enhancing motor and outside air, is convenient for motor heat Distribute.
Preferably, the permanent magnet synchronous motor is covered by protective cover, the protective cover being coated in the stator base It fixes on the base;Air inlet and gas outlet are offered on the protective cover, inner wall is equipped with thermal insulation layer;The air inlet with External quenching system connection;The beneficial effect is that: it prevents external dust or impurity from entering inside motor, is influencing motor just Often work;The thermal insulation layer effectively completely cuts off the temperature of motor and place environment storehouse, prevents from generating in motor operation course The temperature that temperature tests environment storehouse has an impact;The air inlet and gas outlet being equipped with introduce external quenching system, accelerate The heat dissipation of motor hastens, and may make motor to be in optimal operating temperature for a long time, enhances the reliability of equipment, described The heat taken away is discharged directly to outside environment storehouse, also avoids the influence to environment storehouse temperature.
Preferably, the shaft is in through-hole structure;Enhance the circulation of motor rotor component and outside air, is convenient for motor Rotor assembly heat distributes.
Preferably, the rotor assembly includes that rotor pedestal and several axial lines around the shaft are evenly arranged on the rotor pedestal Magnetic base steel plate, the rotor pedestal is fixedly mounted in the shaft;The beneficial effect is that: the rotor pedestal is the magnetic Base steel this offer one can facilitate the installation of magnet steel substrate, and make motor rotor component and main shaft with the template of precise positioning Separate machined can be carried out, difficulty of processing is reduced, facilitates and is designed using removable connection type, facilitates replacement, the dimension in later period Shield.
Preferably, the stator module includes stator base and stator unit, and the stator base is fixedly mounted on institute It states on main shaft, the stator unit is fixedly mounted in the stator base;The beneficial effect is that: the stator base is institute It states stator unit and location and installation platform is provided, the groove for being adapted to the stator unit can be equipped on the stator unit, it is convenient fixed The positioning of subelement, make be equipment assembling process it is easier, moreover it is possible to guarantee installation quality well.
Preferably, the stator unit is made of the stator modules of several fan-shaped structures;The single stator modules packet The stator winding for including stator core and being wrapped in the stator core;The beneficial effect is that modular design is broken The technique of conventional stator core integral manufacturing, reduces the difficulty of processing of large radius stator core, principle is by stator core Be divided into it is several can independent control stator modules, when encoder precisely reads the relative position of rotor and stator, each Single stator modules generate specific magnetic field under the action of controller, generate to the single magnetic base steel plate by its magnetic field same The electromagnetic force of direction of rotation, common combination forms the electromagnetic force of a rotation, and then provides simulated resistance or the moment of inertia Wei Zhuan Grains, If single stator modules damage, more allotment of the controller to single stator modules, equipment still can be operated;When reparation, only Single stator modules are needed to change, it, can not normal work once damage, equipment shut down immediately compared to traditional motor stator It needs to replace entire stator when making, and repairing.
Preferably, the encoder includes the sensing element of code-disc and the induction code-disc, and the code-disc is mounted on shaft Or on rotor assembly, the sensing element is mounted on the shell or stator module, corresponding with the code-disc;It is beneficial to effect Fruit is: revolving speed of the encoder to main shaft, the corner for efficiently utilizing permanent magnet synchronous motor itself are read out, and improve member The utilization rate of device saves cost.
Compared with prior art, the utility model is particularly at when working in environment storehouse and will have the beneficial effect that 1, other than the extreme environment in protection environment storehouse is to the influence of motor itself, being also used to will be electric for the design of protective cover and its thermal insulation layer Machine and environment storehouse carry out thermal isolation, and the heat generated when preventing motor from working has an impact environment storehouse;2, motor case radiates The design in hole enhances the trafficability performance between motor and air, improves the heat dissipation performance of motor;3, motor uses modularization Design, reduce the difficulty of processing of motor stator, saved generation cost, especially when producing large radius stator module; 4, the application of permanent magnet synchronous motor improves the accuracy of control.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the chassis dynamometer of permanent magnet synchronous motor driving described in embodiment one;
Fig. 2 is a kind of structural representation of the chassis dynamometer part of permanent magnet synchronous motor driving described in embodiment one Figure;
Fig. 3 is the structural schematic diagram of the cylindrical cavity;
Fig. 4 is the structural schematic diagram of the front pressuring plate;
Fig. 5 is the structural schematic diagram of middle rotor assembly described in embodiment one and stator module;
Fig. 6 is the structural schematic diagram of the protective cover;
Fig. 7 is a kind of chassis dynamometer structural schematic diagram of permanent magnet synchronous motor driving described in embodiment two;
Fig. 8 is a kind of structural representation of the chassis dynamometer part of permanent magnet synchronous motor driving described in embodiment two Figure;
Fig. 9 is the structural schematic diagram of stator module described in embodiment two;
Figure 10 is a kind of structural schematic diagram of the chassis dynamometer of permanent magnet synchronous motor driving described in embodiment three;
Figure 11 is a kind of structural representation of the chassis dynamometer part of permanent magnet synchronous motor driving described in embodiment three Figure;
In figure: 1, pedestal;11, bottom plate;12, support column;13, shaft;14, rear fender;15, front pressuring plate;151, second dissipates Hot hole;16, cylindrical cavity;161, the first heat release hole;17, level-one gearbox;2, main shaft;3, bearing;4, encoder;41, code-disc; 42, sensing element;5, protective cover;51, air inlet;52, gas outlet;53, thermal insulation layer;6, stator module;61, stator base;62, Stator unit;62-1, stator modules;7, key;8, rotor assembly;81, rotor pedestal;82, magnet steel substrate;9, torque dynamometer; 10, Zhuan Grains.
Specific embodiment
Below in conjunction with the attached drawing in the utility model, the technical solution of the utility model is clearly and completely retouched It states, it is clear that the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.Based on this Embodiment in utility model, those of ordinary skill in the art under the conditions of not making creative work it is obtained it is all its Its embodiment, fall within the protection scope of the utility model.
Embodiment one
As shown in figures 1 to 6, the chassis dynamometer of a kind of permanent magnet synchronous motor driving, including pedestal 1, main shaft 2, encoder 4, 9 Ji Zhuan Grains 10 of torque dynamometer, the pedestal 1 include bottom plate 11 and the composition of support column 12 that 11 two sides of bottom plate are arranged in; The main shaft 2 is fixedly mounted between the support column 12 by bearing 3;Suo Shu Zhuan Grains 10 is fixed on the main shaft 2, described Main shaft 2 provides electromagnetic resistance by permanent magnet synchronous motor come analog mechanical inertia, and the permanent magnet synchronous motor includes shaft 13, shell Body, stator module 6 and rotor assembly 8;The stator module 6 is fixedly mounted on the housing, provides for the rotor assembly 8 The resistance magnetic field of rotation;The rotor assembly 8 with magnetic property is fixedly installed in the shaft 13, with the stator pack Part 6 is corresponding;The torque dynamometer 9 is placed between the main shaft 2 and shaft 13, for measuring the driving torque between axis; The encoder 4 is used to measure the revolving speed and corner of the shaft 13.
Preferably, the shell includes cylindrical cavity 16, front pressuring plate 15 and rear fender 14, the front pressuring plate 15 and afterwards pressure Plate 14 is detachably connected to 16 both ends of cylindrical cavity by fastening bolt, the shaft 13 by bearing be installed on it is described before In pressing plate and rear fender;The cylindrical cavity 16 is equipped with the first heat release hole 161, and first heat release hole 161 is waist round hole, Cloth is in 16 peripheral wall of cylindrical cavity;The front pressuring plate 15 is equipped with the second heat release hole 151, and second heat release hole 151 is fan-shaped Structure;The structure of the rear fender 14 is identical as 15 structure of front pressuring plate;Further, the permanent magnet synchronous motor is by protecting Shield 5 covers, and the protective cover 5 being coated in the stator base 61 is fixed on the support column 12;The protective cover 5 On offer air inlet 51 and gas outlet 52, inner wall is equipped with thermal insulation layer 53;The air inlet 51 is connect with external quenching system; The rotor assembly 8 includes rotor pedestal 81 and several magnet steel bases being evenly arranged on the rotor pedestal 81 around 2 axial line of main shaft Plate 82, the rotor pedestal 81 are fixedly mounted in the shaft 13 by key 7;The stator module 6 includes stator base 61 And stator unit 62, the stator base 61 are fixedly mounted on the cylindrical cavity 16, the stator unit 62 is fixedly mounted In the stator base 61;Further, the stator unit 62 by several fan-shaped cyclic structures stator modules 62-1 Composition;The single stator modules 62-1 includes stator core and the stator winding that is wrapped in the stator core;It is described Stator modules 62-1 is in the inner circumferential wall that the axial line of the stator base 61 is evenly arranged on the stator base 61;The coding Device 4 includes the sensing element 42 of code-disc 41 and the induction code-disc 41, and the code-disc 41 is mounted in shaft 13, the induction member Part 42 is mounted on the cylindrical cavity 16, corresponding with the code-disc 41.
When work, vehicle tyre is contacted Yu Zhuan Grains 10, and the tire belt Dong Zhuan Grains 10 for starting rear vehicle rotates, and at this point, turning Grains 10 is under the stator module 6 of permanent magnet synchronous motor and the electromagnetic force of rotor assembly 8, certainly using full electric inertia simulation technology Dynamic resistance of simulating vehicle during road driving, and then realize the measurement to vehicle travel process parameters, the volume Code device 4 is used to detect the revolving speed and corner of shaft 13, is connected between the shaft 13 and main shaft 2 by the torque dynamometer 9, In axis rotary course, the torque dynamometer 9 is used to measure the driving torque numerical value on main shaft 2, and numerical value is passed to control Device, controller calculate the realtime power of vehicle further according to the revolving speed of shaft 13 indirectly.
Embodiment two
As Figure 7-9, the chassis dynamometer of a kind of permanent magnet synchronous motor driving, including pedestal 1, main shaft 2, encoder 4, 9 Ji Zhuan Grains 10 of torque dynamometer, the pedestal 1 include bottom plate 11 and the composition of support column 12 that 11 two sides of bottom plate are arranged in; The main shaft 2 is fixedly mounted between the support column 12 by bearing 3;Suo Shu Zhuan Grains 10 is fixed on the main shaft 2, described Main shaft 2 provides electromagnetic resistance by permanent magnet synchronous motor come analog mechanical inertia, and the permanent magnet synchronous motor includes shaft 13, shell Body, stator module 6 and rotor assembly 8;The stator module 6 is fixedly mounted on the housing, provides for the rotor assembly 8 The resistance magnetic field of rotation;The rotor assembly 8 with magnetic property is fixedly installed in the shaft 13, with the stator pack Part 6 is corresponding;The torque dynamometer 9 is placed between the main shaft 2 and shaft 13, for measuring the driving torque between axis; The encoder 4 is used to measure the revolving speed and corner of the shaft 13.
Preferably, the torque dynamometer 9 is in the form of a column structure, is fixedly mounted on support column 12, and it is same that end face is equipped with permanent magnetism The installation bolt hole of motor is walked, permanent magnet synchronous motor is mounted by means of bolts on the torque dynamometer 9;The rotor set Part 8 includes that rotor pedestal 81 and several 13 axial lines around the shaft are evenly arranged on the magnet steel substrate 82 on the rotor pedestal 81, is in disk The rotor pedestal 81 of shape structure is bolted on installation 13 end face of shaft;The stator module 6 includes fixed Sub-base 61 and stator unit 62, the stator base 61 are fixedly mounted on the torque dynamometer 9, the stator unit 62 It is fixedly mounted in the stator base 61;Further, the stator unit 62 by several fan-shaped disk-like structures stator Module 62-1 composition;The single stator modules 62-1 include stator core and the stator being wrapped in the stator core around Group;For the stator base 61 in open annular dish structure, the stator modules 62-1 is equal around the axial line of the stator base 61 Cloth is on the end face of the stator base 61;The permanent magnet synchronous motor is covered by protective cover 5, is coated at the stator base 61 On the protective cover 5 be fixed on the support column 12;Air inlet 51 and gas outlet 52 are offered on the protective cover 5, it is interior Wall is equipped with thermal insulation layer 53;The air inlet 51 is connect with external quenching system;The encoder 4 includes code-disc 41 and induction institute The sensing element 42 of code-disc 41 is stated, the code-disc 41 is mounted on rotor pedestal 81, and it is described fixed that the sensing element 42 is mounted on It is corresponding with the code-disc 41 in sub-base 61.
When work, vehicle tyre is contacted Yu Zhuan Grains 10, and the tire belt Dong Zhuan Grains 10 for starting rear vehicle rotates, and at this point, turning Grains 10 is under the stator module 6 of permanent magnet synchronous motor and the electromagnetic force of rotor assembly 8, certainly using full electric inertia simulation technology Dynamic resistance of simulating vehicle during road driving, and then realize the measurement to vehicle travel process parameters, the volume Code device 4 is used to detect the revolving speed and corner of shaft 13, is connected between the shaft 13 and main shaft 2 by the torque dynamometer 9, In axis rotary course, the torque dynamometer 9 measures the driving torque numerical value on main shaft 2, and numerical value is passed to controller, controls Device processed calculates the realtime power of vehicle further according to the revolving speed of shaft 13 indirectly.
Embodiment three
As shown in figs. 10-11, a kind of chassis dynamometer of permanent magnet synchronous motor driving, includes pedestal 1, main shaft 2, level-one Gearbox 17, encoder 4,9 Ji Zhuan Grains 10 of torque dynamometer, the pedestal 1 include bottom plate 11 and are arranged at 11 liang of the bottom plate The support column 12 of side forms;The main shaft 2 is fixedly mounted between the support column 12 by bearing 3;Suo Shu Zhuan Grains 10 is fixed On the main shaft 2, the main shaft 2 provides electromagnetic resistance by permanent magnet synchronous motor come analog mechanical inertia, the permanent-magnet synchronous Motor includes shaft 13, shell, stator module 6 and rotor assembly 8;The stator module 6 is fixedly mounted on the housing, The resistance magnetic field of rotation is provided for the rotor assembly 8;The rotor assembly 8 with magnetic property is fixedly installed in described turn It is corresponding with the stator module 6 on axis 13;The torque dynamometer 9 is placed between the main shaft 2 and shaft 13, for surveying Measure the driving torque between axis;The encoder 4 is used to measure the revolving speed and corner of the shaft 13.
Preferably, the shell includes cylindrical cavity 16, front pressuring plate 15 and rear fender 14, the front pressuring plate 15 and afterwards pressure Plate 14 is detachably connected to 16 both ends of cylindrical cavity by fastening bolt, the shaft 13 by bearing be installed on it is described before In pressing plate and rear fender;The cylindrical cavity 16 is equipped with the first heat release hole 161, and first heat release hole 161 is waist round hole, Cloth is in 16 peripheral wall of cylindrical cavity;The front pressuring plate 15 is equipped with the second heat release hole 151, and second heat release hole 151 is fan-shaped Structure;The structure of the rear fender 14 is identical as 15 structure of front pressuring plate;Further, the permanent magnet synchronous motor is by protecting Shield 5 covers, and the protective cover 5 being coated in the stator base 61 is fixed on the support column 12;The protective cover 5 On offer air inlet 51 and gas outlet 52, inner wall is equipped with thermal insulation layer 53;The air inlet 51 is connect with external quenching system; The rotor assembly 8 includes rotor pedestal 81 and several magnet steel bases being evenly arranged on the rotor pedestal 81 around 2 axial line of main shaft Plate 82, the rotor pedestal 81 are fixedly mounted in the shaft 13 by key 7;The stator module 6 includes stator base 61 And stator unit 62, the stator base 61 are fixedly mounted on the cylindrical cavity 16, the stator unit 62 is fixedly mounted In the stator base 61;Further, the stator unit 62 by several fan-shaped cyclic structures stator modules 62-1 Composition;The single stator modules 62-1 includes stator core and the stator winding that is wrapped in the stator core;It is described Stator modules 62-1 is in the inner circumferential wall that the axial line of the stator base 61 is evenly arranged on the stator base 61;The coding Device 4 includes the sensing element 42 of code-disc 41 and the induction code-disc 41, and the code-disc 41 is mounted in shaft 13, the induction member Part 42 is mounted on the cylindrical cavity 16, corresponding with the code-disc 41.
When work, vehicle tyre is contacted Yu Zhuan Grains 10, and the tire belt Dong Zhuan Grains 10 for starting rear vehicle rotates, and at this point, turning Grains 10 is under the stator module 6 of permanent magnet synchronous motor and the electromagnetic force of rotor assembly 8, certainly using full electric inertia simulation technology Dynamic resistance of simulating vehicle during road driving, and then realize the measurement to vehicle travel process parameters, the volume Code device 4 is used to detect the revolving speed and corner of the shaft 13, and the output end and 17 input terminal of level-one gearbox of the shaft 13 connect It connects, the level-one gearbox 17 is used to adjust the operating condition of permanent magnet synchronous motor and carries out buffer protection to it;The level-one speed change It is connected between the output end and main shaft 2 of case 17 by the torque dynamometer 9, in axis rotary course, the torque dynamometer 9 The driving torque numerical value on main shaft 2 is measured, numerical value is passed into controller, controller calculates indirectly further according to the revolving speed of shaft 13 The realtime power of vehicle out.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (10)

1. a kind of chassis dynamometer of permanent magnet synchronous motor driving includes pedestal, main shaft, encoder, torque dynamometer and is turned Grains, the main shaft are fixedly mounted on the base by bearing;Suo Shu Zhuan Grains is fixed on the main shaft, which is characterized in that The main shaft provides resistance by permanent magnet synchronous motor, and the permanent magnet synchronous motor includes shaft, shell, stator module and rotor Component;The stator module is fixedly mounted on the housing, provides the resistance magnetic field of rotation for the rotor assembly;With forever The rotor assembly of magnetic characteristic is fixedly installed in the shaft, corresponding with the stator module;The torque dynamometer It is placed between the main shaft and shaft, for measuring the driving torque between axis;The encoder is for measuring the shaft Revolving speed and corner.
2. a kind of chassis dynamometer of permanent magnet synchronous motor driving according to claim 1, which is characterized in that the shell It include cylindrical cavity, front pressuring plate and rear fender, the front pressuring plate and rear fender are detachably connected to the cylindrical cavity both ends, The shaft is installed in the front pressuring plate and rear fender by bearing.
3. a kind of chassis dynamometer of permanent magnet synchronous motor driving according to claim 2, which is characterized in that the cylinder Cavity is equipped with the first heat release hole.
4. a kind of chassis dynamometer of permanent magnet synchronous motor driving according to claim 2, which is characterized in that pressure before described Plate is equipped with the second heat release hole;The structure of the rear fender is identical as the front pressuring plate structure.
5. a kind of chassis dynamometer of permanent magnet synchronous motor driving according to claim 3, which is characterized in that the permanent magnetism Synchronous motor is covered by protective cover, and the protective cover being coated in stator base is fixed on the base;The protective cover On offer air inlet and gas outlet, inner wall is equipped with thermal insulation layer;The air inlet is connect with external quenching system.
6. a kind of chassis dynamometer of permanent magnet synchronous motor driving according to claim 1 or 2, which is characterized in that described Shaft is in through-hole structure.
7. a kind of chassis dynamometer of permanent magnet synchronous motor driving according to claim 1, which is characterized in that the rotor Component includes rotor pedestal and several axial lines around the shaft are evenly arranged on the magnetic base steel plate on the rotor pedestal, the rotor pedestal It is fixedly mounted in the shaft.
8. a kind of chassis dynamometer of permanent magnet synchronous motor driving according to claim 1, which is characterized in that the stator Component includes stator base and stator unit, and the stator base is fixedly mounted on the housing, and the stator unit is solid Dingan County is in the stator base.
9. a kind of chassis dynamometer of permanent magnet synchronous motor driving according to claim 8, which is characterized in that the stator Unit is made of the stator modules of several fan-shaped structures;The single stator modules include stator core and are wrapped in described Stator winding in stator core.
10. a kind of chassis dynamometer of permanent magnet synchronous motor driving according to claim 1, which is characterized in that the volume Code device includes the sensing element of code-disc and the induction code-disc, and the code-disc is mounted on shaft or rotor assembly, the induction Element is mounted on the shell or stator module, corresponding with the code-disc.
CN201821073901.3U 2018-07-06 2018-07-06 The chassis dynamometer of permanent magnet synchronous motor driving Active CN208568127U (en)

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CN201821073901.3U CN208568127U (en) 2018-07-06 2018-07-06 The chassis dynamometer of permanent magnet synchronous motor driving

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Application Number Priority Date Filing Date Title
CN201821073901.3U CN208568127U (en) 2018-07-06 2018-07-06 The chassis dynamometer of permanent magnet synchronous motor driving

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020001265A1 (en) 2020-02-26 2021-08-26 Akustikzentrum Gmbh Direct drive of a roller of an acoustic roller test stand

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020001265A1 (en) 2020-02-26 2021-08-26 Akustikzentrum Gmbh Direct drive of a roller of an acoustic roller test stand

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